LTC4218IGN-PBF Ver la hoja de datos (PDF) - Linear Technology
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LTC4218IGN-PBF Datasheet PDF : 18 Pages
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LTC4218
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDD = 12V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
ITIMER(RATIO)
TIMER Current Ratio ITIMER(DN)/ITIMER(UP)
l 1.6
2
2.7
UNITS
%
IMON(FS)
IMON Full-Scale Output Current
IMON(OFF)
IMON Offset Current
GIMON
IMON Gain
BWIMON
IMON Bandwidth
AC Characteristics
tPHL(GATE)
tPHL(SENSE)
Input High (OV), Input Low (UV) to GATE
Low Propagation Delay
VSENSE+ – VSENSE– High to GATE Low
Propagation Delay
tD(ON)
tD(FAULT)
Turn-On Delay
UV Low to Clear Fault Latch Delay
VSENSE+ – VSENSE– = 15mV
VSENSE+ – VSENSE– = 1mV
VSENSE+ – VSENSE– = 15mV and 1mV
VGATE < 16.5V Falling
VFB = 0, Step (VSENSE+ – VSENSE–) to
60mV, CGATE = 1.5nF, VGATE < 16.5V
Falling
Step VUV to 2V, VGATE > 13V
l 94
100
106
µA
l
±0
±6
µA
l 6.47 6.67 6.87 µA/mV
250
kHz
l
3
5
µs
l
0.2
1
µs
l 50
100
150
ms
1
µs
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into pins are positive, all voltages are referenced to
GND unless otherwise specified.
Note 3: An internal clamp limits the GATE pin to a maximum of 6.5V above
the SOURCE pin. Driving either GATE or SOURCE pin to voltages beyond
the clamp may damage the device.
4218fh
4
For more information www.linear.com/LTC4218
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